캐스퍼 url 접속 여부 테스트

var casper = require("casper").create({
    }),
    utils = require('utils'),
    http = require('http'),
    fs = require('fs');

casper.start();

casper.thenOpen('http://www.yahoo.com/', function(response) {
    casper.capture('test.png');
    utils.dump(response.status);
    if (response == undefined || response.status >= 400) this.echo("failed");
});

casper.on('http.status.404', function(resource) {
  this.echo('wait, this url is 404: ' + resource.url);
});

casper.run(function() {
  casper.exit();
});